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Mont Vernon, NH Tap Water Quality 2026

Water quality report for Mont Vernon, NH — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Mont Vernon's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Rolling Acres Mhp PWSID: NH1603010 Updated: 2026 Q2
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Lead above the federal action level

Lead is 40.00 ppb, 267% of the action level and no violations are open. PFAS has never been sampled at this system.

D

Mont Vernon earns a D for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 40.00 ppb — 267% of the federal action level
PFAS never sampled at this system
18 violations since 2015, 17 health-based
No violations currently open
Mont Vernon's lead level vs. all New Hampshire community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 40.00 ppb — 100% of the federal action level
✓ Lower lead than 15% of New Hampshire utilities
Population Served
234
~40 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
18 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
100% of EPA action level
40.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 40.00 ppb, 267% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Combined Radium (-226 and -228) MCL EXCEEDANCE 6 PCI/L 5 pCi/L 2020 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 6 PCI/L 5 pCi/L 2020 Resolved
Combined Uranium MCL EXCEEDANCE 170 UG/L 30 ug/L 2019 Resolved
Combined Uranium MCL EXCEEDANCE 75 UG/L 30 ug/L 2019 Resolved
Combined Uranium MCL EXCEEDANCE 81 UG/L 30 ug/L 2019 Resolved
Combined Uranium MCL EXCEEDANCE 61 UG/L 30 ug/L 2019 Resolved
Public Notice OTHER — — 2016 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 6 PCI/L 5 pCi/L 2016 Resolved
Combined Uranium MCL EXCEEDANCE 230 UG/L 30 ug/L 2016 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 59 PCI/L 15 pCi/L 2016 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2015 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 71 PCI/L 15 pCi/L 2015 Resolved
Combined Radium (-226 and -228) MCL EXCEEDANCE 6 PCI/L 5 pCi/L 2015 Resolved
Combined Uranium MCL EXCEEDANCE 275 UG/L 30 ug/L 2015 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 59 PCI/L 15 pCi/L 2015 Resolved
Combined Uranium MCL EXCEEDANCE 222 UG/L 30 ug/L 2015 Resolved
Combined Uranium MCL EXCEEDANCE 132 UG/L 30 ug/L 2015 Resolved
Gross Alpha, Excl. Radon and U MCL EXCEEDANCE 26 PCI/L 15 pCi/L 2015 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

18 violations are on record since 2015, of which 17 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Rolling Acres Mhp
PWSID NH1603010
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 234
Service connections 40
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Mont Vernon tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 40.00 ppb, 267% of the action level.
Does Mont Vernon water have PFAS? ▼
This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.
Who supplies water to Mont Vernon? ▼
Rolling Acres Mhp (PWSID NH1603010). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2024-04-09. No significant deficiencies were recorded.

What Should Mont Vernon Residents Do?

1
Consider a filter certified for lead
Look for NSF/ANSI 53 certification for lead reduction.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

Nearby Cities in New Hampshire

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